Koszelak S, Dodds J A, McPherson A
Department of Biochemistry, University of California, Riverside 92521.
J Mol Biol. 1989 Sep 20;209(2):323-5. doi: 10.1016/0022-2836(89)90281-7.
Satellite tobacco mosaic virus (STMV), a small T = 1 icosahedral plant virus, has been crystallized in a form suitable for high-resolution X-ray diffraction analysis. The crystals, which diffract to better than 2.5 A resolution, are of space group I222 and have unit cell dimensions of a = 176 A, b = 192 A and c = 205 A. The centers of the virus particles occupy 222 symmetry points in the unit cell and one quarter of the virus particle constitutes the asymmetric unit, which is therefore comprised of 15 capsid protein molecules. From packing considerations, the maximum diameter of the STMV particles cannot exceed 165 A, and it is probably 5 to 10 A less than this value.
卫星烟草花叶病毒（STMV）是一种小型T = 1二十面体植物病毒，已被结晶成适合高分辨率X射线衍射分析的形式。这些晶体的衍射分辨率优于2.5埃，属于空间群I222，晶胞尺寸为a = 176埃，b = 192埃，c = 205埃。病毒粒子的中心占据晶胞中的222对称点，病毒粒子的四分之一构成不对称单元，因此由15个衣壳蛋白分子组成。从堆积情况考虑，STMV粒子的最大直径不能超过165埃，可能比这个值小5到10埃。
